Inking-pad.



No. 669,074. Patented Mar. 5, I901.

F. CARL.

INKING PAD.

(Application filed Apr. 27, 1900.)

(No Model.)

In Venfor.

No. 669,074. Patented Mar. 5, I91". F. CARL.

INKING PAD'.

(Applicatipn filed Apr. 27. 1900.) (No Model.) 2 Sheets-Shaot 2 f yiALA. w

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"tj'nirnn STATES FREDERICK CARL, OF XVASHINGTON, DISTRICT OF COLUMBIA.

lNKlNG-PAD.

SPECIFICATION formingpart of Letters Patent No. 669,074. dated March 5,1901. Application filed April 27, 1900v Serial No. 14,646. (No model.)

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Be it known that I, FREDERICK CARL, a citizen of the United States,residing at. Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Inking-Pads, of which thefollowing is a specification, reference being bad therein to theaccompanying drawings.

Figure l is a central vertical section of a pad embodyingmyimprovements. Fig. 2 is a side View of the pad proper or ink-carryingand ink-supplying part. Fig. 3 is a side View of the base or holder.Fig. at is a top view of the complete article. Fig. 5 is a bottom viewof the pad proper. Fig. 6 is a top View of the base. Fig. 7is ahottomview of the complete article. Fig. 8 is a central section of an old andcommon form of pad, illustrating the differences in structure and modeof use when compared with my improved article.

In the drawings the base or main supporting part of the device isindicated as a Whole by A. This is made by striking or spinning ashallow cup of sheet metal, Whose parts are integral, they consisting ofa bottom a, the annular flange or rim a around the base part, and clipsor ears (t the latter being turned inward from the flange a. The inkcarrying or supplying part is a thick pad of felt B, which is cut orstamped in circular form, as shown in Fig. 4. This felt disk is securedto the sheet-metal plate 0. Heretofore the inking-pads of this class ofwhich I have knowledge have been so constructed as to require a layer ofwoven fabric over the top of the ink-pad proper, the latter beinggenerally formed of felt or equivalent body of absorbing material; butexperience has demonstrated that serious disadvantages are incident tothe articles which thus employ Woven fabrics, particularly because ofthe rapid cutting of the threads of the fabric resulting from thecomparatively powerful and repeated blows imparted by the stamp or diewhich is to be inked by the pad-as, for instance, in the postmarking ofletters. I have found that this difficulty can be overcome by soconstructing the pad that nothing can be struck or impinged on it by thedie or stamp except the thick mass of felt.

By examining the drawings it will be seen that the felt body B and itscarrying-plate O are secured together by stitches of strong thread,(shown at D.) The plate is provided with perforations d at suitableintervals. The thread is passed through these perforations and throughthe felt in such Way that the stitch-loops at D are not exposed at thetop of the pad, but come to the edge surface of the felt, as shown inFigs. 1 and 2. The thread can be carried continuously from the startingto the terminating points by the stitching, as indicated at d d in Fig.but this is immaterial, and as many separate sections of thread can beused as is found desirable. By fastening the felt to the carrying-platein this way all liability of having the stamp or die E come into contactwith any threads is obviated. The fibers of the felt are so related toeach other that no disastrous results follow the blows upon it of thestamp. Another serious difficulty incident to these pads as heretoforemade has grown out of the fact that the ink absorbing and supplyingparts were carried by metallic cuplike holders whose edges projectedconsiderably beyond the pad proper, and consequently were liable to bestruck by the stamp when the operator is moving the latter rapidly from.the pad to the letter and back. Fig. 8 illustrates my meaning in thisrespect. The operators hand in rapid movement many times carries thestamp only to the position E, and at such times the dies at the end ofthe stamp come into contact with the metal at A of the pad-holderA, andthe result is the breaking or marring of the parts which are intended toreceive and transfer the ink. This I obviate by so constructing andrelating the several parts of the device that the soft pad proper shallbe brought close to the outer circle of the metal of the base, as shownin Figs. 1, 2, and 4E, and consequently no matter how rapid may be themovements of the operator in stamping letters or the like it isdifficult, if not impossible, for the dies to come into contact-with anyof the metallic parts.

The felt-carrying plate 0 is provided with notches or recesses c in itsedge corresponding to the ears or cleats a on the base-piece andpreferably equal thereto in number. When the parts of the device are tobe assembled, the pad-plate O is turned to have its recesses c registerwith the ears a and then it can be pushed down below them andsubsequently can be turned so as to have the edge parts of the plate 0between the recesses lie under the ears and prevent upward escape; butat the same time easy separation is permitted when desired. The recessesc in the felt-plate and the stitches D can be so arranged that the clipsor ears a can come close to or even extend under the edge of the felt,and thus permit the felt to be of such width as to protect thestamping-tool from striking upon the metal base of the base; but all ofthe other features of the invention are not limited to the preciserelative dimensions of the pad and base which I have thus described, assome of them maybe attained even though the base be of considerablylarger diameter than the felt. In another respect the earlier pads withwhich I am acquainted have been found dis-advantageousnamely, in this,that they have been approximately solid in their character-that is, theylack resiliency or appreciable yielding when struck by the stamp, thisbeing true even when coinparativelythick felt or equivalent materialsare used. It is well known that the jar to the hand and the arm of theoperator caused by the blow of the stamp upon the pad is a seriousobjection. This also I have succeeded in overcoming. I interpose beneaththe felt-carrying plate C and the bottom a of the base springs F. Asshown, these are bent highly-elastic plates riveted atfto the plate 0,with their free ends f resting upon the base A. They are distributed insuch way that at Whatever point upon the felt the stamp strikes the blowshall be received by one or more of the springs and the shock to thehand and arm of the operator eliminated.

Fig. 8 illustrates the matter last described and also illustrates thefact above set forth as to the action of the stamp or die when broughtinto contact with the woven fabric, such as that at G, the stampfrequently assuming the position shown at E at which times the sharpouter edge is inclined to the fabric and one partthereof transmits to afew threads all of the downward blow.

What I claim is- 1. In an inking-pad, the combination with the base, ofthe pad-plate O detachably secured to the base, and the felt padstitched to the plate 0, substantially as set forth.

.2. In an inking-pad, the combination with the cup-like base having theinwardly-turned clips, of the felt-carrying plate having notches orrecesses permitting it to be placed under and engage with the clips, andthe felt pad stitched to the said plate, substantially as set forth.

3. An inking-pad having at its upper side an exposed thick felt body, afelt-carrying plate stitched to the felt, the base detachably secured tothe felt-carrying plate, and springs interposed between the base and theplate, substantially as set forth.

4. An inking-pad having at its upper operative side an exposed thickbody of felt, a felt-carrying plate, stitch-loops at the peripheral edgeof the felt securing it to said plate, and the base detachably securedto the plate, substantially as set forth.

5. An inking-pad having at the bottom a supporting-base and at its upperoperative side a thick mass of exposed felt approximately equal indiameter to the base, and a felt-carrying plate secured to the felt andconnected to the base, the said felt covering the outer portion of. thecarrying-plate to protect the stamp, substantially as set forth.

6. An inking-pad having a bottom supporting-base, a relatively thickbody of felt at the upper operative side, a felt-carrying plate stitchedto the under side of the felt and springs secured to the under side ofthe plate whereby the entire article is formed in two separable parts,substantially as set forth.

7. Theherein-describedinking-pad formed in two separable parts, one partconsisting of a base and the other consisting of a metallic plate havingsecured thereto an ink-absorbing pad, and springs below the pad, thesaid felt covering the outer portion of the carrying-plate to protectthe stamp, substantially as set forth.

8. An inking-pad having at its upper side an exposed thick felt body, afelt-carrying plate fastened to the felt and a base detachably securedto the pad-plate, the said felt covering the outer portion of thecarryingplate to protect the stamp, substantially as set forth.

9. An inking-pad having a supporting-base and a relatively thick body offelt at the upper operative side supported on said base, the said feltcovering the extreme outer portion of the supporting means to protectthe stamp, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

FREDERICK CARL.

Witnesses:

N. OURTIs LAMMOND, RICHARD B. CAVANAGH.

